Very simple and dirty json CLI query tool

json.rb

#!/usr/bin/env ruby
# Very simple and dirty json CLI query tool

require 'rubygems'
require 'json'

def numeric?(s)
  Float(s) rescue false
end

this = JSON[STDIN.read]
js_path = ARGV[0].split('.')

unless ARGV[0] == "-e"
  query_string = "#{js_path[0]}"
  query_string = query_string + js_path[1..-1].reduce("") do |s, p| 
    if numeric? p
      "#{s}[#{p}]" 
    else
      "#{s}['#{p}']" 
    end
  end
else
  query_string = ARGV[1]
end



result = eval(query_string)
begin 
  puts JSON.pretty_generate(result)
rescue Exception => e
  puts result
end